python - Python 检查中 <..> 的含义

Question

在 IPython session 中，我有以下内容:

> my_array?
Type:       ndarray
String Form:
[[ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.] <...> [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]
           [ 1.]]
Length: 500

什么是 <...>上面的意思是？我有一个一维数组的一维数组还是其他什么？

Answer 1

<...>这就是 IPython 在字符串太长时跳过值的方式。在 IPython/core/oinspect.py :

    # String form, but snip if too long in ? form (full in ??)
    if detail_level >= self.str_detail_level:
        try:
            ostr = str(obj)
            str_head = 'string_form'
            if not detail_level and len(ostr)>string_max:
                ostr = ostr[:shalf] + ' <...> ' + ostr[-shalf:]
                ostr = ("\n" + " " * len(str_head.expandtabs())).\
                        join(q.strip() for q in ostr.split("\n"))
            out[str_head] = ostr
        except:
            pass